#include<stdio.h>


struct s
{
    int a;
    char c;
    char arr[20];
};

struct t
{
    int ab;
    char ch[2];
    struct s S;
    int age;
};

int main()
{
    struct t a1 = {10,"bb",{10,'B',"bbbb"},10};
    printf("%s",a1.S.arr);
    return 0;
}